Today, David Cameron was supposed to have given his first green speech since becoming prime minister – nearly two years after announcing that this would be the Greenest Government Ever. Damian Carrington in the Guardian lambasted Cameron for abandoning his plans for a keynote speech. There’s no question that he was planning to make this speech – we were one of the “green” groups that were canvassed for ideas to include in the speech and duly committed time and effort to developing ideas in the hope that Number 10 would spot a shiny bauble and pick it up. Instead, The Prime Minister has announced today that Green Energy “must be affordable” . Sound Familiar? – its the same refrain we heard from the Chancellor in the budget – “environmental sustainability must follow fiscal sustainability” – that means we can only afford to be environmentally sustainable when we’ve got rid of…